But I must admit that until recently I thought of them more as a two-headed baby than as two different babies. So much of their care is simultaneous like nursing and and rocking and even diapering (I usually have both of them on the changing pad at once) and when they were completely unresponsive socially it kind of felt like I was just lugging around one unit with lots of limbs. But now they are heavier and awake more often and I actually spend time looking into their awake eyes during the day so they are becoming two babies. Look everyone! I have twins!